Apparatus for conveying oil



July 10, 1934. e. M. BOOTH El AL APPARATUS FOR- CONVEYING OIL Filed Nov. 12, 1931 zlllmrll l lflm Patented July 10, 1934 UNITED STATES lATl-INT OFFICE beth , N. J., assignors to Standard Oil Development Company, a corporation of Delaware Application November 12, 1931, Serial No. 574,536 8 Claims. (01. 196-133) This invention relates to improvements in method and apparatus for conveying oil at cracking temperatures. The invention will be fully understood from the following description taken in connection with the accompanying drawing in which latter Fig. 1 is a longitudinal sectional view of a discharge line leading from a soaking drum, and

Fig. 2 is a transverse sectional view taken along the line II-II of Fig. 1.

Referring particularly to the drawing, reference numeral 1 designates the wall of a receptacle such as a soaking drum. The soaking drum is provided with a discharge opening 2, and a lining 3 of heat insulating material such as a highly heat resisting cement disposed upon the inner surface of the soaking drum. The soaking drum is adapted to contain hydrocarbon oil under elevated conditions of temperature and pressure and constitutes the zone in which a part of the cracking of the hydrocarbon oil occurs. The cracked hydrocarbon oil is conducted from the soaking drum through the discharge opening 2 and is delivered into fractionating equipment not shown. The walls of the discharge opening diverge irregularly toward the exterior of the receptacle' The walls of the discharge opening are constituted by a sleeve 5 which is of reduced diameter adjacent the interior of the soaking drum at 6 to form a constricted opening. The portion of the sleeve 5 facing the exterior of the receptacle is of enlarged diameter as indicated at 7. A lining 9 of heat insulating material such as an appropriate material of low thermal conductivity is disposed between the sleeve 5 and the wall 1 of the soaking drum. The sleeve 5 is supported in the opening 2 by means of an annular metallic ring 11 situated at the base of the portion 6 of the sleeve. The annular ring 11 is welded to the wall of the soaking drum. The sleeve 5 is welded to the annular ring -11 and is welded to the exterior surface of the soaking drum wall at 12.

A discharge line for delivering hydrocarbon oil from the opening 2 includes a conduit 15 which extends from the exterior of the receptacle into and terminates near the inner end of the opening 2. The interior walls of the conduit are preferably at least as large as the constricted portion of the sleeve 5. The exterior walls of the 0 conduit 1.5 are preferably larger than the constricted portion of the sleeve 5. The conduit 15 is disposed in spaced relation to the enlarged portion of the opening 2 forming an annular inlet 16. The conduit 15 terminates in spaced relation to the constricted portion of the opening 2 whereby the annular inlet delivers into the opening 2. An annular collar 18 is provided upon the conduit exteriorly of the receptacle 1 and is provided with a passageway 19 extending from its exterior into the annular inlet 16. Fluid such as oil under pressure is adapted to be delivered into passageway 19 from a suitable source of supply not shown, and conducted therefrom through annular inlet 16 into the stream of oil discharged from the soaking drum through the opening 2. I

A pipe 21 having a flange 22 is aligned with the conduit 15. The adjoining faces of the collar 18 and the flange 22 are provided with aligned annular recesses 26 which receive the ring 23. The

adjoining surfaces of the soaking drum wall 1 70.;

and collar 18 are also provided with aligned annular recesses 26 which receive the ring 24. Bolts 25 draw the flange 22 toward the soaking drum thereby securing the flange to the collar and the collar to the soaking drum in fluid tight relation. 75.

The construction described is particularly adapted for the introduction of fresh relatively cold hydrocarbon oil at the entrance to the discharge opening from the soaking drum of an oil cracking installation. The fresh oil flows into the discharge opening in the form of an annular ring of oil which is swept along with the stream of cracked hydrocarbon oil through conduit 15 but remains in close proximity to the walls of conduit 15. The introduction of the relatively cold oil has the efie'ct of protecting from the deposition of carbon the conduit and pipe leading to the fractionating equipment, as well as any valves in the pipe. The relatively cold stock ispreferably a hydrocarbon oil such as cracking coil tar or the like although it will be understood that other liquids such as an animal or vegetable oil can be injected and some of the advantages of the invention will be retained. The relatively cold stock can be injected at a temperature of 150 F. or other suitable temperature which will minimize the deposition of carbon from the oil upon the walls of the conduit. The annular inlet which is in the form of a continuous circular slot eiiects excellent distribution of the incoming relatively cold oil and minimizes the possibility of complete plugging of the inlet such as might occur if a number of small holes were used instead of a circular slot. It permits the introduction of the injection stock uniformly at every point in 5' the circumference of the conduit at any desired angle to the longitudinal axis of the conduit. The entrance angle of the injection stock can be so designed as to spill part of the injection stock into the soaking drum. The injection oil can be The insulation 9 eliminates excessive temperature stresses in the soaking drum wall. .The structure is readily disassembled for cleaning and in- Also, none of the parts pro spection purposes. trude within the soaking drum. While the in venticn has been particularly described for use in connection with the cracking of hydrocarbon oils, it will be understood that it can be used in connection withother discharge lines.

Various changes may be made within the scope, of. the appended-claims in which it is desired 10 claim all novelty inherent in the invention as broadly as, the prior art permits. l

. We-claim:

1. In an apparatus, a receptacle for fluids hav-; ing a dischargeopening, a conduit extending from the exterior of the receptacleinto the opening in spaced relation to the walls of the opening forming .with the walls an annular inlet-into the open: ing, an annular collar upon the conduit exteriorly of the receptacle, and means securing thecollar to the receptacle in fluid tight relation,.the collar ":having a passageway, extending from its exterior;

into the annular inlet 2. Inoil treating apparatus, a receptaclehaving a discharge opening, a conduit extending from the exterior of the receptacle into the opening in spaced relation to the walls of the opening form-,

ing with the walls an annular inlet into the opening, an annular collar upon the conduit exteriorly of the receptacle, and means securing the collar to the receptacle in fluid tight relation, the

- collar having a passageway extending from its exterior into the annular inlet.

3.. In oil treating apparatus a receptacle having a discharge opening,a conduit extending from the exteriorof the receptacle into and terminating between the ends of the opening in spaced:

relation-to the walls of the opening forming with the walls an annular inlet into the opening, an annular collar upon the conduit exteriorly of the receptacle, and means securing the collar tothe;

receptacle in; fluid tight relation, the collar hav-.

ing a passageway extending from its exterior into.

the annular inlet. h

4. In oil treating apparatus, a receptacle hav: ing a discharge opening the walls of which diverge toward the exterior of the receptacle, a conduit extending from the exterior of. the. receptacle into and terminating between the ends of the. openingin spaced relation to the walls of,

the opening forming an annular inlet into the opening, an annular collar upon the conduit exteriorly of the receptacle, and means including a ring joint securing the collar to the receptacle, the collar having a passageway extending from its exterior into the annular inlet.

5. In on treating apparatus, a receptacle having a discharge opening a portion of the walls of which spaced from the exterior of the receptacle are constricted, a conduit the exterior walls of which are larger than the constricted "portion extending from the exterior of the receptacle into the-opening and terminating in spaced relationto theconstricted portion, the conduit being in spaced relation to the walls of the opening forming an annular inlet into the opening, an annular collar upon the conduit exteriorly'of therec'eptacle, and means securing the collar to the receptacle in fluid tight relation, the collar having a passageway extending from its exterior into the annular inlet.

6. In oil'treating apparatus, a receptacle having a discharge opening a portion of the walls ofwhich' spaced 'frornthe exterior of the receptacle. are constricted, aconduit the exterior walls of which are larger and the interior walls of which are-at. least :in the. constricted portion, the conduit: extending from the exterior of the receptacle intcthe opening and terminating in spaced relation to the constricted portion, the conduit being iII'SDELCEd relation to the walls of the opening forming an annular inlet into the opening, an annular collar upon the conduit exteriorly of the. receptacle; and means securing the collar to the receptacle in fiuidtight relation, the collar having a passagewayextending from its exterior.

into the annular inlet..

7. Inoil cracking apparatus, a receptacle hav-' ing a. ..discharge opening, a conduit extending from theexterior of the receptacle into and termin'ating between the ends of the opening in spaced relation to the walls of the opening forming an annular inletinto the opening, an annular collar upon theconduit exteriorly of the receptacle, the collar having a passageway extending from its exterior. into the annular inlet, a flanged pipe aligned with .theconduit, and means for securing the-flange to the .collar and the collar to the receptacle in fluid tight relation.

8..In oil crackingapparatus, a metallic receptacle having-a discharge opening, a layer of heat insulating. materiallining the discharge opening, a :conduit extending. into and terminating between the ends of the openingv in. spaced rela-.

larhaving. a passageway. extending from its ex- .GECRGE M. BOOTH. .RICI-IARD W. TRYON.

terior into the inlet. 

